79881520

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{26987}}^1$

素因数の和:27037

約数の個数: 40

約数和(自身を含む): 190751184

約数和(自身を除く): 110869664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 26987, 53974, 107948, 134935, 215896, 269870, 431792, 539740, 998519, 1079480, 1997038, 2158960, 3994076, 4992595, 7988152, 9985190, 15976304, 19970380, 39940760, 79881520]

約数ペア:

[(1, 79881520), (2, 39940760), (4, 19970380), (5, 15976304), (8, 9985190), (10, 7988152), (16, 4992595), (20, 3994076), (37, 2158960), (40, 1997038), (74, 1079480), (80, 998519), (148, 539740), (185, 431792), (296, 269870), (370, 215896), (592, 134935), (740, 107948), (1480, 53974), (2960, 26987)]